CN107874283A - Rotary shearing mechanism and stalk rotary cutting apparatus - Google Patents

Abstract

The invention discloses a kind of rotary shearing mechanism and stalk rotary cutting apparatus, rotary shearing mechanism includes hollow rotating tool rest, at least one positioning cutting unit on the hollow rotating tool rest, the positioning cutting unit includes blade and the knife rest provided with location division, and the blade is arranged on the knife rest；A kind of stalk rotary cutting apparatus, including frame, power source, transmission mechanism, rotary support mechanism, it is characterised in that the power source is located at bottom of the frame, the frame middle and upper part is provided with rotary support mechanism, the rotary support mechanism includes bearing block, bearing, driving wheel, and the bearing is arranged in bearing saddle bore, and the driving wheel is arranged in bearing hole, the driving wheel is provided with race, and rotary shearing mechanism is provided with the rotary support mechanism.The present invention can adjust the diameter of rotary cutting according to the plant haulm of different-diameter size, and simple and compact for structure, small volume is in light weight, and working service is convenient.

Description

Rotary cutting mechanism and stalk rotary cutting device

technical field

The invention relates to the field of cutting technology, in particular to a rotary cutting mechanism and a stem rotary cutting device.

Background technique

In many occasions, it is necessary to cut or peel the stems of plants, such as cutting and peeling during wood processing, scraping the skin of sugarcane before eating, etc. At present, this kind of processing is mostly manual, which is time-consuming and laborious. There are also some attempts Machining is used, but there is no suitable special equipment for round cutting or peeling.

For example, sugarcane, which is very popular among the public, has high nutritional value, but it is troublesome to eat because of its hard skin. At present, the commonly used method is to let the seller use a knife to peel off the skin when buying sugarcane, and some of them cut it off by themselves. When using the above method, if you gnaw by yourself, the mouth will often be broken; if the seller peels the skin, it is very labor-intensive and labor-intensive. If a worker is specially hired to peel the skin, the cost will be high. will increase.

Chinese patent document CN206413715U discloses (disclosure date is August 18, 2017) a sugarcane peeling and cutting machine, including a frame, and the frame is provided with an input mechanism, a peeling mechanism, a cutting mechanism and an output mechanism from left to right. , which realizes automatic feeding, discharging and cutting functions to a certain extent. However, such existing cutting tools cannot maintain cutting stability and adaptability to stems with different diameters, and it is inconvenient to replace and maintain the cutting tool, and the damage of one blade will affect the normal operation of the entire device.

Contents of the invention

The technical problem to be solved by the present invention is to provide a rotary cutting mechanism and a stem rotary cutting device. The size of the cutting diameter can be adaptively adjusted by the size of the plant stem through the cutting mechanism itself, and the stability of the processing and the cutting depth can be controlled. Consistency, compact structure, small size, light weight, easy to use and maintain.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

It includes a hollow rotary tool seat, at least one positioning cutting unit installed on the hollow rotary tool seat, the positioning cutting unit includes a blade and a tool holder with a positioning part, the blade is installed on the tool holder, and the blade The included angle between the cutting direction and the central axis of the hollow rotary knife seat is а, and 0°<а≤90° (20-60° can be further preferred to achieve a better rotary cutting effect), and the hollow rotary knife When the seat rotates, the blade is driven to form a rotary cutting around the central axis of the hollow rotary tool seat.

Further, the tool holder includes a mounting section, a middle bending section, and a nesting section. A mounting groove is opened downward along the nesting section, and the lower edge of the mounting groove protrudes toward the central axis of the hollow rotary tool seat to form a The positioning part is radially provided with a chute on the circumference of the hollow rotary tool holder, and the tool holder installation section is matched and installed in the chute via a corresponding elastic component, so that the positioning part is always Press against the object to be cut.

Further, it also includes a bracket installed on the circumference of the hollow rotary knife holder; the knife holder includes an outwardly warped section, an arc-shaped connecting section and a base installation section, and the blade is installed inside the base installation section. There is a protrusion protruding toward the central axis of the hollow rotary knife holder at the connection between the warped section and the arc-shaped connecting section to form the positioning part, and the knife holder is installed on the bracket through the corresponding elastic member to The positioning portion is always pressed against the object to be cut.

Preferably, the elastic component includes a spring and a limit pin passing through it.

Preferably, the elastic component includes a connecting rod I, a connecting rod II, and a torsion spring. One end of the connecting rod I is hinged to the bracket through a pin fitted with a torsion spring, and the other end of the connecting rod I is connected to the knife rest through a The pin of the torsion spring is hinged, and the two ends of the connecting rod II are respectively hinged with the knife holder and the bracket, so that the connecting rods I, II, the bracket and the knife holder form a linkage mechanism capable of driving the blade to move forward and backward.

Preferably, it includes 2-6 positioning cutting units evenly distributed on the hollow rotary tool seat; the cutting plane where each blade is located forms an included angle of 0-45° with the central axis of the hollow rotary tool seat, and can be further preferably 5-25° , which is beneficial to control the depth of cutting and prevent jumping of the knife, so as to achieve better cutting effect.

A stalk rotary cutting device, comprising a frame, a power source, a transmission mechanism, and a rotary support mechanism, the power source is arranged at the bottom of the frame, and a rotary support mechanism is installed on the upper middle of the frame, and the rotary support mechanism includes Bearing seat, bearing, driving wheel, the bearing is installed in the bearing seat hole, the driving wheel is installed in the bearing hole, the driving wheel is provided with a wheel groove, and the above-mentioned rotary cutting mechanism is installed on the rotating support mechanism ;

Further, a corresponding feed mechanism is provided corresponding to the center of the driving wheel on one side or both sides of the rotation support mechanism, and the feed mechanism includes a roller bracket, two corresponding upper rollers and lower rollers, The upper roller shaft and the lower roller shaft for driving the upper roller and the lower roller respectively, the upper roller and the lower roller are respectively set on the upper roller shaft and the lower roller shaft, and the upper roller shaft and the lower roller shaft are set on the On the roller bracket, the upper roller shaft and the lower roller shaft share a roller bracket.

Further, the end surface of the driving wheel is fixedly connected with the end surface of the hollow rotary tool seat.

Furthermore, the rotating support mechanism also includes a positioning ring, one end of the bearing hole is fitted with a positioning ring, the driving wheel is fitted in the positioning ring, and the other end of the bearing hole is fitted with the rotary cutting tool according to claim 1. Hollow rotary tool holder in the mechanism.

Further, it also includes a cutting mechanism installed on one or both ends of the frame and corresponding to the feeding mechanism. The cutting mechanism includes a cutting knife, a cutting knife bracket, and a cutting knife rotating shaft. One end of the cutting knife is sleeved on the On the shaft of the cutting knife, the shaft of the cutting knife is set on the bracket of the cutting knife; the transmission mechanism is a belt drive, including pulley I, pulley II, intermediate shaft, transmission shaft, bevel gear I, and bevel gear I. The bevel gear II, the intermediate shaft is set at the bottom of the frame and parallel to the output shaft of the power source, the pulley I and pulley II are installed on the output shaft of the power source, and the pulley II is connected to the drive wheel through a belt drive , the pulley I is connected to the intermediate shaft through a belt drive, and one or both ends of the intermediate shaft are respectively equipped with a bevel gear I, and the bevel gear II is installed at the end of the transmission shaft perpendicular to the intermediate shaft. The other end of the shaft is installed on the frame, and the transmission shaft transmits power to the lower roller shaft through a belt drive.

Compared with the prior art, the present invention has the following positive and beneficial technical effects:

1. The structure of the present invention is simple and compact. The rotary cutting mechanism can process plant stems of different diameters through its own adaptability, and maintain the stability of the cutting process and the consistency of the peeling depth. It is small in size and light in weight. easy maintenance;

2. The positioning cutting unit of the rotary cutting mechanism of the present invention is connected to the hollow rotary tool seat through elastic components, and the diameter of the rotary cutting can be automatically adjusted according to the diameter of the plant stem, which is convenient to use and has a wide application range;

3. The rotary cutting mechanism of the present invention is connected to the frame through the bearing seat, which is convenient for assembly, disassembly and maintenance;

4. The present invention can be equipped with multiple sets of positioning cutting units. The damage of one blade does not affect the normal operation of the whole device. The blade is installed on the tool holder, and it is easy to replace the blade after damage;

5. The rotary cutting of the present invention has a better effect on cutting and peeling plant stems.

Description of drawings

Fig. 1 is the schematic diagram of the structure of the rotary cutting mechanism;

Fig. 2 is a schematic diagram of the overall structure of the rotary cutting mechanism installed on the rotary support mechanism;

Fig. 3 is a side view structural schematic diagram of the rotary cutting mechanism installed on the rotary support mechanism;

Fig. 4 is the overall structure schematic diagram of the present invention;

Fig. 5 is a side view structural schematic diagram of the present invention;

Fig. 6 is a schematic structural view of Embodiment 2 of the rotary cutting mechanism;

7 is a schematic diagram of the overall structure of the rotary cutting mechanism installed on the rotary support mechanism in Embodiment 2;

Figure 8 is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

9 is a schematic diagram of the overall structure of the rotary cutting mechanism installed on the rotary support mechanism in Embodiment 3;

10 is a schematic diagram of the overall structure of Embodiment 3 of the present invention;

In the figure, 101. Hollow rotating tool seat, 102. Tool holder, 103. Blade, 104. Chute, 105. Elastic component, 105-1. Connecting rod I, 105-2. Connecting rod II, 106. Positioning part, 107. Bracket, 2. Rotary support mechanism, 201. Driving wheel, 202. Bearing seat, 203. Bearing, 3. Feed mechanism, 301. Upper roller, 302. Upper roller shaft, 303. Roller bracket, 304. Lower roller , 4. Cutting mechanism, 401 Cutting knife, 402 Cutting knife bracket, 5. Plant stem, 6. Rack, 7. Power source, 801. Transmission shaft, 802. Intermediate shaft, 803. Bevel gear Ⅰ, 804. Cone gear II.

Detailed ways

The specific implementation of the present invention will be described below in conjunction with the accompanying drawings and examples, but the following examples are only used to describe the present invention in detail, and do not limit the scope of the present invention in any way.

The parts, structures and mechanisms involved in the following embodiments are conventional commercially available products unless otherwise specified.

Embodiment 1: A rotary cutting mechanism, referring to Fig. 1 to Fig. 5, comprising a hollow rotary tool seat 101, three positioning cutting units evenly installed on the hollow rotary tool seat 101 through an elastic member 105, and the positioning cutting unit includes blades 103 and the tool holder 102 provided with the positioning part 106, the blade 103 is installed on the tool holder 102, and the included angle between the cutting direction of the blade 103 and the central axis of the hollow rotary tool holder 101 is а=45°, and each blade The cutting plane and the central axis of the hollow rotary tool holder form an included angle of 15°. When the hollow rotary knife holder 101 rotates, the blade 103 is driven to form a rotary cutting around the central axis of the hollow rotary knife holder 101. The positioning part 106 is used to maintain the same cutting depth and cut stability.

The tool holder 102 includes a mounting section, a middle bending section, and a nesting section. A mounting groove is provided downward along the nesting section, and the lower edge of the mounting groove protrudes toward the central axis of the hollow rotary tool holder 101 to form a positioning portion 106. A sliding groove 104 is radially provided on the circumference of the hollow rotary tool holder 101 , and the installation section of the tool holder 102 is fitted in the sliding groove 104 via a corresponding elastic member 105 , so that the positioning part 106 always presses against the object to be cut.

The elastic component 105 includes a spring and a limiting pin passing therethrough.

A stalk rotary cutting device, comprising a frame 6, a power source 7, a transmission mechanism, a rotary support mechanism 2, the power source 7 is arranged at the bottom of the frame 6, a rotary support mechanism 2 is installed on the middle and upper part of the frame 6, and the rotary support mechanism 2 includes a bearing seat 202, a bearing 203, and a drive wheel 201, the bearing 203 is installed in the hole of the bearing seat 202, the hollow rotary tool holder 101 in the rotary cutting mechanism is set on one end of the bearing 203 hole, and the rotary support mechanism 2 also includes a positioning ring, The other end of the hole of the bearing 203 is sleeved with a positioning ring, and the driving wheel 201 is sleeved in the positioning ring.

Corresponding drive wheel 201 center is provided with corresponding feed mechanism 3 at the both sides of rotation supporting mechanism 2, and feed mechanism 3 comprises roller bracket 303, two corresponding upper roller 301 and lower roller 304 up and down, are respectively used to drive upper roller 301 and the upper roller shaft 302 and the lower roller shaft of the lower roller 304, the upper roller 301 and the lower roller 304 are respectively sleeved on the upper roller shaft 302 and the lower roller shaft, and the upper roller shaft 302 and the lower roller shaft are sleeved on the roller bracket 303, The upper roller shaft 302 and the lower roller shaft share a roller bracket 303 .

It also includes a cutting mechanism 4 installed at one or both ends of the frame 6 and corresponding to the feed mechanism. The cutting mechanism 4 includes a cutting knife 401, a cutting knife support 402, and a cutting knife rotating shaft. One end of the cutting knife 401 is set on the cutting knife rotating shaft. The cutting knife rotating shaft is set on the cutting knife support 402;

The transmission mechanism is belt drive, including pulley Ⅰ, pulley Ⅱ, intermediate shaft 802, transmission shaft 801, bevel gear Ⅰ 803, bevel gear Ⅱ 804 matched with bevel gear Ⅰ 803, intermediate shaft 802 is set at the bottom of the frame and parallel to the power source The output shaft, pulley Ⅰ and pulley Ⅱ are installed on the output shaft of the power source, wherein the pulley Ⅱ is connected to the driving wheel 201 through a belt transmission, and the pulley Ⅰ is connected to the intermediate shaft 802 through a belt transmission, and one end or both ends of the intermediate shaft 802 are respectively installed Bevel gear I 803 is arranged, bevel gear II 804 is installed on the end of the transmission shaft perpendicular to intermediate shaft 802, and the other end of transmission shaft 801 is installed on the frame, and transmission shaft 801 transmits power to the lower roller shaft through belt transmission.

The working principle of the present invention is as follows: the plant stem 5 is pushed into the rotary cutting mechanism 1 by the feed mechanism 3 behind the rotary cutting mechanism, and the positioning cutting unit can process plant stems 5 of different diameters by stretching or compressing the elastic member 105 , the positioning part 106 of the tool holder 102 is kept in close contact with the plant stem 5 to control the stability of the processing and the uniformity of the cutting thickness. The cutting mechanism 4 in front of the rotary cutting mechanism is used to cut the plant stalk, that is, the cutting work of the plant stalk is completed.

Embodiment 2: The working principle of this embodiment is the same as that of Embodiment 1, see Fig. 6 to Fig. 8, the specific difference is that: it also includes a bracket 107 installed on the circumference of the hollow rotary tool holder 101; the tool holder 102 includes an outward warping section , an arc-shaped connection section and a base installation section, the blade 103 is installed on the inside of the base installation section, and there is a protrusion protruding toward the central axis of the hollow rotary tool holder 101 at the joint between the warped section and the arc-shaped connection section to form a positioning part 106 The tool holder 102 is mounted on the bracket 107 through the corresponding elastic member 105, so that the positioning part 106 is always pressed against the object to be cut.

The driving wheel 201 is installed in the hole of the bearing 203 , the driving wheel 201 is provided with a wheel groove, and the end surface of the driving wheel 201 is fixedly connected with the end surface of the hollow rotary tool holder 101 .

During specific use: the plant stem 5 is pushed into the rotary cutting mechanism by the feed mechanism 3 in front of the rotary cutting mechanism. It is necessary to use the cutting mechanism 4 behind the rotary cutting mechanism to cut the plant stem 5 , that is, to complete the cutting work of the plant stem 5 .

Embodiment 3: The working principle of this embodiment is the same as that of Embodiment 1, see Figure 9 to Figure 10, the specific difference is that: the elastic component 105 includes connecting rod I 105-1, connecting rod II 105-2, torsion spring, connecting rod I 105- 1. One end is hinged with the bracket 107 through a pin set with a torsion spring. The other end of the connecting rod I105-1 is hinged with the knife rest 102 through a pin set with a torsion spring. The two ends of the connecting rod II105-2 are respectively connected with the knife rest 102 and the bracket. 107 is hinged, so that connecting rod I 105-1, connecting rod II 105-2, bracket 107 and knife rest 102 form a connecting rod mechanism that can drive the blade 103 to move forward and backward, and the connecting rod mechanism can drive the corresponding blade close to or Away from the central axis of the cutter seat, to a certain extent adapt to the thickness of the stalk to be cut.

The specific operation steps of this embodiment are the same as those in Embodiment 2.

The present invention has been described in detail above in conjunction with the accompanying drawings and embodiments. However, those skilled in the art can understand that each specific parameter in the above embodiments can also be changed without departing from the spirit of the present invention. A number of specific embodiments are formed, all of which are common variation scopes of the present invention, and will not be described in detail here.

Claims (10)

1. a kind of rotary shearing mechanism, it is characterised in that including hollow rotating tool rest, at least one be arranged on the hollow rotating knife Positioning cutting unit on seat, the positioning cutting unit include blade and the knife rest provided with location division, and the blade is arranged on On the knife rest, and the angle of blade cut direction and the hollow rotating tool rest axis is set to be а, and 0 ° of ＜ а≤90 °, it is described Hollow rotating tool rest drives the blade to form rotary cutting around the hollow rotating tool rest axis when rotating.

2. rotary shearing mechanism according to claim 1, it is characterised in that the knife rest includes construction section, middle part bending Section, nested section, offer downwards mounting groove, and the mounting groove lower edge portion is convex to hollow rotating tool rest axis along the nested section To form the location division, chute is radially provided with the hollow rotating tool rest circumference, the knife rest construction section is via right The elastomeric element matching answered is arranged in the chute, so that the location division is pressed on object to be cut all the time.

3. rotary shearing mechanism according to claim 1, it is characterised in that also include being arranged on the hollow rotating tool rest Support on circumference；The knife rest includes sticking up section, arc linkage section and base portion construction section outside, and the blade is installed on the base portion On the inside of construction section, there is the projection that is convex to hollow rotating tool rest axis in the outer section and arc linkage section junction of sticking up, with The location division is formed, the knife rest is installed on the bracket, so that the location division is all the time by corresponding elastomeric element It is pressed on object to be cut.

4. the rotary shearing mechanism according to Claims 2 or 3, it is characterised in that the elastomeric element includes spring and worn The spacing pin being located therein.

5. rotary shearing mechanism according to claim 3, it is characterised in that the elastomeric element includes connecting rod I, connecting rod IIth, torque spring, described one end of connecting rod I are hinged with support by being set with the pin of torque spring, the other end of connecting rod I with Knife rest is hinged by being set with the pin of torque spring, and the both ends of connecting rod II are hinged with knife rest and support respectively, so that described Connecting rod I, connecting rod II can be with the linkages that cutting blade moves forward and backward with support and knife rest composition.

6. rotary shearing mechanism according to claim 1, it is characterised in that be distributed in hollow rotating tool rest including 2-6 Positioning cutting unit；Cutting plane where each blade forms 0~45 ° of angle with hollow rotating tool rest axis.

7. a kind of stalk rotary cutting apparatus, including frame, power source, transmission mechanism, rotary support mechanism, it is characterised in that described Power source is located at bottom of the frame, and the frame middle and upper part is provided with rotary support mechanism, and the rotary support mechanism includes bearing Seat, bearing, driving wheel, the bearing are arranged in bearing saddle bore, and the driving wheel is arranged in bearing hole, on the driving wheel Provided with race, rotary shearing mechanism as claimed in claim 1 is installed on the rotary support mechanism；

The driving wheel center is corresponded in the one or both sides of the rotary support mechanism and is provided with corresponding feed mechanism, it is described enter Include rolling wheel support, upper and lower two corresponding upper rollers and bottom roller to mechanism, be respectively used to drive the upper roller and lower rolling The upper roller shaft and bottom roller axle of wheel, the upper roller and bottom roller are set on upper roller shaft and bottom roller axle, described On rolling wheel support, upper roller shaft and the bottom roller axle shares a rolling wheel support for upper roller shaft and bottom roller axle sleeve.

8. stalk rotary cutting apparatus according to claim 7, it is characterised in that the driving wheel end face and hollow rotating tool rest End face is fixedly connected.

9. stalk rotary cutting apparatus according to claim 7, it is characterised in that the rotary support mechanism also includes positioning Circle, described bearing hole one end are set with centring ring, and the driving wheel is sleeved in centring ring, and the bearing hole other end is set with Hollow rotating tool rest in rotary shearing mechanism as claimed in claim 1.

10. stalk rotary cutting apparatus according to claim 7, it is characterised in that also include be installed on described frame one end or Both ends and shut-off mechanism corresponding with the feed mechanism, the shut-off mechanism include cutoff tool, cut-out knife support, cutoff tool Rotating shaft, described cutoff tool one end are sleeved in cutoff tool rotating shaft, and the cutoff tool shaft set is on cut-out knife support；The biography Motivation structure is V belt translation, including belt wheel I, belt wheel II, jackshaft, power transmission shaft, bevel gear I, the bevel gear being engaged with bevel gear I II, the jackshaft is located at bottom of the frame and parallel power source output shaft, and the belt wheel I, belt wheel II export installed in power source On axle, wherein belt wheel II connects the driving wheel by belt transmission, and the belt wheel I connects the centre by belt transmission Axle, the jackshaft one or both ends are separately installed with bevel gear I, and the bevel gear II is arranged on the transmission vertical with jackshaft Shaft end, the power transmission shaft other end be arranged on frame on, the power transmission shaft by belt transmission impart power to it is described under Roller shaft.